| Portsmouth to Nevers | 326.31 mi (525.14 km) |
| Portsmouth to Nice | 627.10 mi (1,009.21 km) |
| Portsmouth to Nimes | 544.52 mi (876.31 km) |
| Portsmouth to Niort | 310.86 mi (500.28 km) |
| Portsmouth to Noeux-les-Mines | 165.91 mi (267.01 km) |
| Portsmouth to Nogent-le-Rotrou | 191.76 mi (308.60 km) |
| Portsmouth to Nogent-sur-Marne | 209.31 mi (336.85 km) |
| Portsmouth to Nogent-sur-Oise | 189.89 mi (305.60 km) |
| Portsmouth to Noisiel | 213.51 mi (343.60 km) |
| Portsmouth to Noisy-le-Grand | 211.20 mi (339.90 km) |
| Portsmouth to Noisy-le-Sec | 205.80 mi (331.21 km) |
| Portsmouth to Nort-sur-Erdre | 233.34 mi (375.52 km) |
| Portsmouth to Notre-Dame-de-Gravenchon | 116.90 mi (188.13 km) |
| Portsmouth to Noyon | 199.53 mi (321.12 km) |
| Portsmouth to Obernai | 415.93 mi (669.38 km) |
